ID   KCY_CALS8               Reviewed;         226 AA.
AC   A4XKN9;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   29-MAY-2007, sequence version 1.
DT   03-AUG-2022, entry version 73.
DE   RecName: Full=Cytidylate kinase {ECO:0000255|HAMAP-Rule:MF_00238};
DE            Short=CK {ECO:0000255|HAMAP-Rule:MF_00238};
DE            EC=2.7.4.25 {ECO:0000255|HAMAP-Rule:MF_00238};
DE   AltName: Full=Cytidine monophosphate kinase {ECO:0000255|HAMAP-Rule:MF_00238};
DE            Short=CMP kinase {ECO:0000255|HAMAP-Rule:MF_00238};
GN   Name=cmk {ECO:0000255|HAMAP-Rule:MF_00238}; OrderedLocusNames=Csac_1889;
OS   Caldicellulosiruptor saccharolyticus (strain ATCC 43494 / DSM 8903 / Tp8T
OS   6331).
OC   Bacteria; Firmicutes; Clostridia; Thermoanaerobacterales;
OC   Thermoanaerobacterales Family III. Incertae Sedis; Caldicellulosiruptor.
OX   NCBI_TaxID=351627;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 43494 / DSM 8903 / Tp8T 6331;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA   Kiss H., Brettin T., Bruce D., Han C., Schmutz J., Larimer F., Land M.,
RA   Hauser L., Kyrpides N., Lykidis A., van de Werken H.J.G., Verhaart M.R.A.,
RA   VanFossen A.L., Lewis D.L., Nichols J.D., Goorissen H.P., van Niel E.W.J.,
RA   Stams F.J.M., Willquist K.U., Ward D.E., van der Oost J., Kelly R.M.,
RA   Kengen S.M.W., Richardson P.;
RT   "Genome sequence of the thermophilic hydrogen-producing bacterium
RT   Caldicellulosiruptor saccharolyticus DSM 8903.";
RL   Submitted (APR-2007) to the EMBL/GenBank/DDBJ databases.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + CMP = ADP + CDP; Xref=Rhea:RHEA:11600,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:58069, ChEBI:CHEBI:60377,
CC         ChEBI:CHEBI:456216; EC=2.7.4.25; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00238};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + dCMP = ADP + dCDP; Xref=Rhea:RHEA:25094,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:57566, ChEBI:CHEBI:58593,
CC         ChEBI:CHEBI:456216; EC=2.7.4.25; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00238};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00238}.
CC   -!- SIMILARITY: Belongs to the cytidylate kinase family. Type 1 subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_00238}.
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DR   EMBL; CP000679; ABP67474.1; -; Genomic_DNA.
DR   RefSeq; WP_011917409.1; NC_009437.1.
DR   AlphaFoldDB; A4XKN9; -.
DR   SMR; A4XKN9; -.
DR   STRING; 351627.Csac_1889; -.
DR   EnsemblBacteria; ABP67474; ABP67474; Csac_1889.
DR   KEGG; csc:Csac_1889; -.
DR   eggNOG; COG0283; Bacteria.
DR   HOGENOM; CLU_079959_0_2_9; -.
DR   OMA; RAITWWM; -.
DR   OrthoDB; 776861at2; -.
DR   Proteomes; UP000000256; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0036430; F:CMP kinase activity; IEA:RHEA.
DR   GO; GO:0036431; F:dCMP kinase activity; IEA:RHEA.
DR   GO; GO:0016310; P:phosphorylation; IEA:UniProtKB-KW.
DR   GO; GO:0006220; P:pyrimidine nucleotide metabolic process; IEA:UniProtKB-UniRule.
DR   CDD; cd02020; CMPK; 1.
DR   Gene3D; 3.40.50.300; -; 1.
DR   HAMAP; MF_00238; Cytidyl_kinase_type1; 1.
DR   InterPro; IPR003136; Cytidylate_kin.
DR   InterPro; IPR011994; Cytidylate_kinase_dom.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   Pfam; PF02224; Cytidylate_kin; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   TIGRFAMs; TIGR00017; cmk; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Cytoplasm; Kinase; Nucleotide-binding; Transferase.
FT   CHAIN           1..226
FT                   /note="Cytidylate kinase"
FT                   /id="PRO_1000048205"
FT   BINDING         10..18
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00238"
SQ   SEQUENCE   226 AA;  25378 MW;  E672AB7649B94A99 CRC64;
     MKKINIAIDG PAGAGKSTIS KLLAKKLGYI HIDTGAMYRA IGLKVLNSNI KSNEVEKILE
     VLDNTDIQIK IVAGSQLVLL DGEDVTEKIR QPSVSMYASD VSKIKEVREK LVKIQQDLAK
     QKGVIMDGRD IGTYVLPDAE LKIFLTATAE ERAKRRFLEL KEKGYEVDYY QLLDEIKQRD
     LNDMTRELAP LRVAEDAIVI DSTNLTIEEV LQKVLELFYK VIGNEV